The 1894 Series, known as the "First Bureau Issue," marked the first time the U.S. government printed its own postage stamps, ending the 47-year monopoly of private contractors. Produced by the Bureau of Engraving and Printing (BEP), this series used existing designs but introduced small, unique "triangles" in the corners of the stamps to distinguish them from earlier American Bank Note Company issues.

The BEP, which had been established in 1862, successfully bid for the contract to print postage stamps, overcoming intense opposition from private firms that claimed the government was incapable of the work. The BEP reused the 1890–1893 stamp dies. The most defining feature of this series is the addition of small triangles in the upper corners of the designs.